BD|SENSORS DMP 321 Series Industrial Pressure Transmitters

Introduction – BD|SENSORS DMP 321 Series Industrial Pressure Transmitters

The BD|SENSORS DMP 321 Series represents a new generation of industrial pressure transmitters, offering superior performance, long-term stability, and high versatility. As an enhanced development of the proven DMP 331, this transmitter combines improved signal behavior with a stainless-steel sensor design, providing reliable measurements even in demanding process environments.

Built for universal industrial applications, the DMP 321 Series features a metallic diaphragm made of 316L stainless steel (1.4435) and a robust 316L housing, ensuring corrosion resistance and durability in harsh operating conditions. Its modular construction allows for a wide selection of electrical and mechanical connections, pressure ranges, and sealing materials, giving engineers the flexibility to configure the sensor for nearly any application.

With accuracy up to ±0.1% FSO and excellent thermal behavior, the DMP 321 delivers consistent results even under extreme temperature variations. The transmitter’s compact and rugged design makes it ideal for installations where space is limited but performance and precision are critical.

In the UAE and broader MENA region, the BD|SENSORS DMP 321 Series is available through Dubai Sensor, supporting industries such as manufacturing, energy, and environmental engineering with reliable, European-engineered pressure measurement solutions.

Key Features & Benefits

• Pressure range from 0 … 100 mbar up to 0 … 600 bar (gauge or absolute)
  
• High accuracy: ±0.25% FSO standard, ±0.1% optional
  
• Excellent long-term stability: ≤ ±0.1% FSO per year
  
• Fast response time: ≤10 ms (2-wire), ≤3 ms (3-wire)
  
• Stainless-steel design: corrosion-resistant 316L sensor and housing
  
• Wide temperature range: −40 … +125 °C (medium)
  
• Modular configuration: multiple process and electrical connections available
  
• Intrinsically safe (ATEX / IECEx) versions for Zone 0 and Zone 20
  
• Compact construction for easy integration into machinery and systems
  
• Vibration- and shock-resistant (up to 20 g RMS / 500 g)
  

Technical Specifications – BD|SENSORS DMP 321 Series

Standards & Certifications

• Accuracy: IEC 61298-2
  
• EMC Compliance: EN 61326
  
• CE Marking: EMC Directive 2014/30/EU
  
• Pressure Equipment Directive: 2014/68/EU (Module A)
  
• ATEX Directive: 2014/34/EU
  
• IECEx Certification: IBE 12.0027X (intrinsic safety)
  
• Ingress Protection: Up to IP68 (depending on configuration)
  

Applications & Industries

• Plant and machine engineering – for hydraulic and pneumatic pressure monitoring
  
• Environmental engineering – water treatment, waste management, and process monitoring
  
• Energy industry – power plants, fuel systems, and renewable energy applications
  
• Mobile hydraulics – construction machinery, agricultural vehicles, and lifting systems
  

In the UAE and MENA regions, the DMP 321 Series supports industrial automation and infrastructure projects requiring robust, accurate, and durable pressure transmitters.

Installation, Commissioning & Maintenance

The DMP 321 Series is designed for easy installation with a variety of mechanical threads (G¼, G½, NPT) and electrical connectors (M12x1, ISO 4400, Binder 723, Bayonet MIL-C-26482, and cable outlet options).
Its any-position mounting capability and short-circuit protection simplify integration into both new and existing systems.

Routine maintenance is minimal—thanks to the welded stainless-steel sensor construction, the transmitter offers long-term reliability with no need for recalibration under normal operating conditions.

Why Choose BD|SENSORS DMP 321 Series Industrial Pressure Transmitters

The DMP 321 Series combines precision, flexibility, and reliability to meet the high expectations of modern industrial environments. Its excellent thermal stability and wide measuring range make it suitable for nearly any process or system requiring dependable pressure measurement.

With German-engineered quality and proven performance, the DMP 321 Series ensures long service life, even under heavy mechanical stress or temperature fluctuations. As an official BD|SENSORS distributor, Dubai Sensor offers this series throughout the UAE and MENA region, providing customers with technical support and local availability.

Ordering Guide

1. Select the desired pressure range (0 … 100 mbar to 0 … 600 bar, gauge or absolute).
   
2. Choose the output signal (4 … 20 mA, 0 … 20 mA, or 0 … 10 V).
   
3. Define electrical connection (M12x1, ISO 4400, Binder 723, Bayonet MIL-C-26482, or cable outlet).
   
4. Specify mechanical connection (G¼, G½, NPT, EN 837, flush or open port).
   
5. Select seal material (FKM standard or EPDM optional).
   
6. Indicate optional intrinsic safety (ATEX/IECEx) if required.
   
7. Confirm configuration and order via Dubai Sensor, your official BD|SENSORS partner in the UAE and MENA region.

FAQ – BD|SENSORS DMP 321 Series Industrial Pressure Transmitters

Q1. What is the measuring range of the DMP 321 Series?
The DMP 321 Series covers nominal pressures from 0 … 100 mbar up to 0 … 600 bar, available in both gauge and absolute versions.

Q2. What output signals are available?
The transmitter offers multiple output configurations:

• 2-wire: 4 … 20 mA
  
• 3-wire: 0 … 20 mA or 0 … 10 V
  Other signal options can be requested for customized applications.
  

Q3. How accurate is the DMP 321 pressure transmitter?
Standard accuracy is ±0.25% FSO, with an optional high-precision version of ±0.1% FSO, compliant with IEC 61298-2 standards.

Q4. Is the DMP 321 suitable for use in explosive environments?
Yes. An intrinsically safe (IS) version is available with ATEX and IECEx approvals, suitable for Zone 0 (gas) and Zone 20 (dust) applications.

Q5. What materials are used in the sensor and housing?
All media-contacting parts are made from stainless steel 1.4404 / 1.4435 (316L) for excellent corrosion resistance. The housing is also stainless steel, ensuring durability in harsh industrial environments.

Q6. What are the available mechanical connections?
The DMP 321 Series supports G¼", G½", ¼ NPT, ½ NPT, and EN 837 threaded connections, including flush and open port versions for special applications.

Q7. Can the transmitter handle high vibration or shock environments?
Yes. The DMP 321 is tested for vibration up to 20 g RMS (10–2000 Hz) and shock resistance up to 500 g / 1 ms, according to DIN EN 60068 standards.

Q8. What are the temperature limits for operation?

• Medium: −40 … +125 °C
  
• Electronics: −40 … +85 °C
  
• Storage: −40 … +100 °C
  

Q9. How long is the operational life of the sensor?
Each transmitter is rated for up to 100 million load cycles, ensuring long service life with minimal maintenance.

Q10. Where can I purchase the DMP 321 Series?
The DMP 321 Series is available through Dubai Sensor, the official BD|SENSORS distributor for the UAE and MENA regions, offering full technical support and configuration options.